package com.yl.nettylearning.netty.day11;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.util.CharsetUtil;

/**
 * @author yangl
 */
public class TcpClientHandler extends SimpleChannelInboundHandler<ByteBuf> {

    private int count;

    @Override
    protected void channelRead0(ChannelHandlerContext ctx, ByteBuf msg) throws Exception {
        byte[] buffers = new byte[msg.readableBytes()];
        msg.readBytes(buffers);
        String message = new String(buffers, CharsetUtil.UTF_8);
        System.out.println("客户端接收到的消息：" + message);
        System.out.println("客户单接收到的消息数量：" + (++this.count));
    }

    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        //使用客户端发送10条数据，hello server 编号
        for (int i = 0; i < 10; i++) {
            ByteBuf byteBuf = Unpooled.copiedBuffer("hello,server" + i, CharsetUtil.UTF_8);
            ctx.writeAndFlush(byteBuf);
        }
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        System.out.println(cause.getMessage());
        ctx.close();
    }
}
